How to pass transient data from one visualforce page to another?

Hi,

I've a link in my visualforce page, which renders the data as Excel. However, post developement, I wanted to do some performance tuning and to reduce the view state size, have declared the list variable (having the complete set of data to be displayed) as transient. As a result, no values are being passed to the next VF page.

As of the moment, I've removed the transient type and it is working fine. However, if there is any way to pass transient values to subsequent pages, it will be very useful as I'm worried about the view state size in case of a huge volume of data.

Thanks...!!

~Ayan

July 31, 2014
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Best Answer chosen by AyanHore

Ashwani
Transient are not meant for maintaining state. In apex transient variables get set to null after assignment and performing required state. IT is only maintain for a single context thread.

To pass value from one page to another use non-transient variable. If you have any viewstate issue set that variable to null after you finished with it.

July 31, 2014
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Alex Tennant
Are you saving your transient data back to the database in your first page?

If you are then you can pass the Id to your second page and then re-query for the data to access it in your second page.

July 31, 2014
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Anup Jadhav
I would say if you want to pass data from one page to another then don't declare it transient. Alternatively copy the transient value to a non-transient variable and use that for inter-page communication.